22 static int getstr(char **lineptr, size_t *n, FILE *stream,  in getstr()  argument
29 	if (!lineptr || !n || !stream)  in getstr()
32 	if (!*lineptr) {  in getstr()
34 		*lineptr = malloc(*n);  in getstr()
35 		if (!*lineptr)  in getstr()
40 	read_pos = *lineptr + offset;  in getstr()
49 		assert(*n - nchars_avail == read_pos - *lineptr);  in getstr()
56 			nchars_avail = *n + *lineptr - read_pos;  in getstr()
57 			*lineptr = realloc(*lineptr, *n);  in getstr()
58 			if (!*lineptr)  in getstr()
60 			read_pos = *n - nchars_avail + *lineptr;  in getstr()
61 			assert(*n - nchars_avail == read_pos - *lineptr);  in getstr()
66 			if (read_pos == *lineptr)  in getstr()
83 	ret = read_pos - (*lineptr + offset);  in getstr()
87 int getline (char **lineptr, size_t *n, FILE *stream)  in getline()  argument
89 	return getstr(lineptr, n, stream, '\n', 0);  in getline()